The Syrp Variable ND Filter is an essential film-making and photography tool. With 1-8 stops of light create dreamy bokeh effect in your films or shoot glassy smooth lakes and waterfalls for photography and time-lapse. Made from high-quality Japanese glass, each kit comes protected in a genuine leather case that includes step-up rings to fit additional lens sizes. Small VND Filter Kit Contents 1 x 67mm Variable ND filter 1 x Genuine leather case 1 x adapter for 58mm lenses 1 x adapter for 52mm lenses 1 x Syrp lens cloth. Exposure Reduces exposure by 1-8.5 stops (ND2-ND400) Dimensions Filter 9mm thick Filter step up rings 3mm thick Mount Type The front of the Filters are threaded so you can stack other filters, will also fit a regular lens cap.